You're questioning whether there are any interesting problems in the P v NP space? https://en.wikipedia.org/wiki/P_versus_NP_problem

But if you want to keep it in the realm of the everyday: you're asking if it is easier to write an email than to read it and check it covers what you wanted to say? Is it easier to search for something or to look at what's been found and say that it's what you were looking for?